numerical signal

The Triaxial Magnetic Flux Leakage Signal Analysis of Spiral Weld Roof Topping and Hi-Low Defects Three-dimensional Numerical of CLAM Steel on TIG Welding

螺旋焊缝噘嘴错边缺陷三轴漏磁信号分析中国低活化马氏体钢TIG焊焊接的三维数值模拟

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In the UAV telemetry& control system, it is required that the numerical control oscillator ( NCO) having high frequency resolution and small spurious signal.

无人机的测控系统要求数控振荡器（NCO）的频率分辨率高、相位噪声低、杂散小。

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The fields of parametric transient signal array in two cases of linear absorption ( absorption limiting) and nonlinear absorption ( saturation limiting) of the primary wave, are studied by numerical calculation and experimentation. The theoretical computational results are in fair agreement with experimental data.

对于原波的线性吸收（吸收限制）和非线性吸收（饱和限制）情况下的参量阵进行了理论计算与实验研究，取得了较满意的一致性。

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Then does numerical simulation about the effect of the optical fiber length, pump power, signal power and doping concentration on gain of the optical fiber amplifier, and selects optimal parameters for the amplifier by analyzing the simulation result.

接着对光纤长度、泵浦光功率、信号光功率以及铒/镱离子的掺杂浓度比例对光纤放大器增益特性的影响进行了数值模拟，分析仿真结果从而选择了放大器最优的参数。

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Numerical simulations reveal that different inserted time, amplitude and width of pulse signal will influence maximum radius and collapse velocity of bubble.

脉冲加入的时间、脉冲幅度和宽度影响气泡最大半径和气泡崩溃速率。

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In numerical simulation experiments the exponential damping or oscillating damping functions were used to simulate discharge signals and the effect of extracting signal as well as some other influential factors was investigated.

数值仿真研究中，用指数衰减或衰减振荡波来模拟放电信号，研究了小波变换提取信号的效果及有关影响因素。

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This paper presents the pulse signal spectrum bandwidth using Romberg numerical integration algorithm under a certain energy wastage required. A reconstruction signal is obtained by Fourier Series, and the optimum bandwidth of the measurement system is also presented.

本文用Romberg数值积分法计算出在一定能量损耗限值要求下的脉冲信号频谱宽度，并用付氏级数对其进行了信号重构验证，据此得出了脉冲信号测试系统带宽的最佳值。

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Sonic noise can be solved through using arithmetic mean in place of the real numerical value to increase signal and noise ratio.

对于声噪声，我们采用算术平均值来代替其真值的方法来提高回波的信噪比，从而对声噪声进行抑制。

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